A decadal record of inter-annual surface ice flow from Pedersenbreen, Svalbard (2005-15)
This study presents the fundamental surface-ice-flow features of Pedersenbreen, a Svalbard valley glacier, from yearly high-precision GPS observations during 2005–2015. Data analysis shows that surface horizontal velocities ranged from 6.45 to 7.98 m a−1 and that inter-annual velocity changes reache...
Published in: | Polar Science |
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Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2019
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Subjects: | |
Online Access: | https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=15973 http://id.nii.ac.jp/1291/00015863/ |
Summary: | This study presents the fundamental surface-ice-flow features of Pedersenbreen, a Svalbard valley glacier, from yearly high-precision GPS observations during 2005–2015. Data analysis shows that surface horizontal velocities ranged from 6.45 to 7.98 m a−1 and that inter-annual velocity changes reached 12.37%; vertical velocities ranged from −0.65 to 0.26 m a−1 during the study period. The strain-rate results indicate that the glacier can be divided. into three sections. Flow variation was greatest in the highest section and very likely the source of winter runoff, which accumulated as an ice pond in front of the Pedersenbreen glacier tongue in 2014 and 2015. |
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